Improvement in oven-doors



J. KRENIG. OVemDOOr.

No. 212,712. PatentedF'eb. 25, 1879 Smm 2%@ ff mj @4% UNITED STATESPATENT OEEICE.

JOSEPH KRENIG, 0F NEWARK, NEW JERSEY.

a IMPROVEMENT IN OVEN-DOORS.

Speciication for1ning.part of Letters Patent No. 212,712, dated February25, 1879; application filed J annary 23, 1879.

To all whom it may concern,.-

Be it known that I, JOSEPH KRENIG, of Newark, in the State of NewJersey, have i11- vented a new and useful Improvement in Doors forBakingOvens, of which the following is a specication:

The nature of my invention consists in the arrangement in the frame towhich the door ot' a bakingoven is fastened of a water chamber, tofacilitate the introduction of vapors or steam into the bakingoven 5and, further, by the arrangement of a balanced sliding door, to preventas much as possible the escape of the vapors or steam from the oven whenthe door requires to be opened.

In baking-ovens for baking bread called Vienna bread,77 steam or vaporsmust be introduced during the process of baking the bread; and as it isdesirable to retain as much as possible these vapors in the oven, evenwhen the door must be opened for the purpose of charging or emptying theoven, this sliding door isarranged in place of hinged or folding doors,as is usual at present. By this arrangement only the lower part,'suflicient to introduce a new-quantity or to withdraw some of the bakedbread, can be opened, retaining thereby the vapors or steam in the upperpart of the oven, while with the hinged or folding doors the whole mouthof the oven is opened each time.

In the accompanying drawings, Figure I represents a front view of thefront and door for a baking-oven. Fig. II is a longitudinal section ofan oven with my ,front and door attached.

A is the frame, forming the front of the oven, secured to the mason-workof the same by suitable anchor-bolts a a.. B is the opening' throughthis front into the oven, closed by a (l, attached to a lever, I),prosliding door,

. the baking-oven H.

vided with a balance-weight, E,to balance the weight of the door C andfacilitate the opening and closing of the same.

Above the mouth-piece B a water-chamber, F, is arranged in this frontplate, A, closed at the top by the Ere-bricks forming the roof of Asmall sliding door, J, is provided in this front, for the purpose ofintroducing the necessary water into the chamber F, and small openings aare made in the inner plate, to allow the vapors or steam to escape intothe oven H.

The bottom plate, m, of the mouth or opening B is made loose, capable ofbeing removed when it is necessary to enter the oven for repairing thesame.

By this arrangement of a waterchamber in the front, the required vaporsor steam can be easily supplied into the oven, and at the same time theoperator is partly protected from the heat radiating from the front ofthe oven.

By the arrangement of the sliding door, the same can be opened more orless, as may be required, and the vapors or steam in the upper part ofthe oven Will be prevented from escaping as freely as with the presentarrangement of hinged or folding doors.

Vhat I claim as my invention, and desire to secure by Letters Patent, is

In combination with a front, A, of a bakingoven, the water-chamber F,removable bottom piece, m, of the mouth or opening B, and the balancedslid-ing door G, arranged in the manner and for the purposesubstantially as described.

JOSEPH KEENIG.

Witnesses:

HENRY E. RoEDER, HENRY VAN BLARCOM.

